Home / 20,492.04-28,286.10-12,108

Finding the Fourth Proportional to 20,492.04, 28,286.10 and 12,108

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Solution

The fourth proportional to 20,492.04, 28,286.10 and 12,108 is: 16,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,492.04 : 28,286.10 = 12,108 : x
  2. Step 2: Convert to fraction form
    20,492.04/28,286.10 = 12,108/x
  3. Step 3: Cross multiply
    20,492.04x = 28,286.10 × 12,108
  4. Step 4: Simplify right side
    20,492.04x = 342,488,098.80
  5. Step 5: Solve for x
    x = 342,488,098.80/20,492.04
  6. Step 6: Final answer
    x = 16,713.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.